A stored cross-site scripting (XSS) issue was discovered in the OpenEMR Hospital Information Management System version 6.0.0.

An Insecure Direct Object Reference (IDOR) vulnerability in OpenEMR 6.0.0 allows any authenticated attacker to access and modify unauthorized areas via a crafted POST request to /modules/zend_modules/public/Installer/register.

An authenticated SQL injection issue in the calendar search function of OpenEMR 6.0.0 before patch 3 allows an attacker to read data from all tables of the database via the parameter provider_id, as demonstrated by the /interface/main/calendar/index.php?module=PostCalendar&func=search URI.

OpenEMR 6.0.0 has a pnotes_print.php?noteid= Insecure Direct Object Reference vulnerability via which an attacker can read the messages of all users.

In OpenEMR, versions 5.0.0 to 6.0.0.1 are vulnerable to weak password requirements as it does not enforce a maximum password length limit. If a malicious user is aware of the first 72 characters of the victim user’s password, he can leverage it to an account takeover.

In OpenEMR, versions 4.2.0 to 6.0.0 are vulnerable to Reflected Cross-Site-Scripting (XSS) due to user input not being validated properly. An attacker could trick a user to click on a malicious url and execute malicious code.

In OpenEMR, versions 2.7.3-rc1 to 6.0.0 are vulnerable to Stored Cross-Site-Scripting (XSS) due to user input not being validated properly in the `Allergies` section. An attacker could lure an admin to enter a malicious payload and by that initiate the exploit.

In OpenEMR, versions v2.7.2-rc1 to 6.0.0 are vulnerable to Improper Access Control when creating a new user, which leads to a malicious user able to read and send sensitive messages on behalf of the victim user.

In OpenEMR, versions 5.0.2 to 6.0.0 are vulnerable to Stored Cross-Site-Scripting (XSS) due to user input not being validated properly. A highly privileged attacker could inject arbitrary code into input fields when creating a new user.

In OpenEMR, versions 5.0.2 to 6.0.0 are vulnerable to Stored Cross-Site-Scripting (XSS) due to user input not being validated properly and rendered in the TOTP Authentication method page. A highly privileged attacker could inject arbitrary code into input fields when creating a new user.

In OpenEMR, versions 5.0.2 to 6.0.0 are vulnerable to Stored Cross-Site-Scripting (XSS) due to user input not being validated properly and rendered in the U2F USB Device authentication method page. A highly privileged attacker could inject arbitrary code into input fields when creating a new user.